[ Summary for dev@: calling svn_fs_change_rev_prop() from Python works; calling svn_fs_change_rev_prop2() with old_value_p=None changes the property and then segfaults. ]
Mark Ziesemer wrote on Wed, Sep 02, 2015 at 00:01:40 +0000: > I'm trying to call fs.change_rev_prop2 (https://goo.gl/6b6TG5) from Python / > SWIG - and apparently can't figure out how to pass old_value_p as what I'm > assuming needs to be a double pointer from Python. > In short, I don't think that's currently possible; I think the bindings will need to be patched for this to work. The 'const svn_string_t *const *old_value_p' parameter of svn_fs_change_rev_prop2() will need to be wrapped correctly. (Currently it is wrapped incorrectly: passing None to it segfaults although NULL is a valid value.) How should that parameter be presented to Python code? In particular, how should Python code that passes a "pointer to a NULL pointer" as the argument look like? (Moving the thread to dev@. I'll reply separately on users@ with a few notes about your code.) Cheers, Daniel